<?php
$viewUrl = cr('cmsConfig.Backend.siteUrl').'/admin/listing_claims/index/'.$listing['Listing']['id'];
?>
Dear <?php echo cr('cmsConfig.Backend.adminUser');?>,

A claim has been made on

<?php echo $listing['Listing']['title']?> by 
<?php echo $session->read('Auth.User.username');
?>

Copy url : <?php $viewUrl?> to view.